4 Photosystem I captures energy and produces energy-carrying molecules.chlorophyll absorbs energy from sunlightenergized electrons are used to make NADPHNADPH is transferred to light-independent reactions

5 The light-dependent reactions produce ATP.hydrogen ions flow through a channel in the thylakoid membraneATP synthase attached to the channel makes ATP

6 The second stage of photosynthesis uses energy from the first stage to make sugars.Light-independent reactions occur in the stroma and use CO2 molecules.

7 A molecule of glucose is formed as it stores some of the energy captured from sunlight.carbon dioxide molecules enter the Calvin cycleenergy is added and carbon molecules are rearrangeda high-energy three-carbon molecule leaves the cycle

8 A molecule of glucose is formed as it stores some of the energy captured from sunlight.two three-carbon molecules bond to form a sugarremaining molecules stay in the cycle